martin, what's the latest? >> reporter: the latest is, of course, the ongoing rescue effort under way. the door-to-door searching you just described. now the weather. there's a severe line headed directly for west, texas, right now. that's going to be problematic, at least in the short term, because of the high wind it could bring. structures have already been weakened in that community. and it could impact the effort to not only try to save lives but could also have an impact on the winds. and the winds are potentially what could carry the anhydrous ammonia, the very dangerous chemical they're talking about here, that could be inhaled. there are three levels at which they're functioning and still worried about this disaster 10, 11 hours after the fact. that is, they've got to rescue, got to evacuate still, and they've got to keep an eye on that other tank that has not exploded. this community, you know, when that explosion went off, it shatter the buildings, shattered lives and it has torn this town upside down.